多核cpu的服务器cpu利用率

using System;
using System.Diagnostics;

class Program
{
    static void Main(string[] args)
    {
        PerformanceCounter[] counters = new PerformanceCounter[ System.Environment.ProcessorCount ];
        for(int i=0; i<counters.Length; i++)
        {
            counters[i] = new PerformanceCounter("Processor", "% Processor Time", i.ToString());
        }

        while(true)
        {
            for(int i=0; i<counters.Length; i++)
            {
                float f = counters[i].NextValue();
                Console.WriteLine("CPU-{0}: {1:f}%", i, f);
            }
            Console.WriteLine();
            System.Threading.Thread.Sleep(1000);
        }
    }
}